diff --git a/examples/JDBC/springbootdemo/readme.md b/examples/JDBC/springbootdemo/readme.md
index a3942a6a51..a89e21c009 100644
--- a/examples/JDBC/springbootdemo/readme.md
+++ b/examples/JDBC/springbootdemo/readme.md
@@ -1,6 +1,13 @@
## TDengine SpringBoot + Mybatis Demo
## 需要提前创建 test 数据库
+
+```
+$ taos -s 'create database if not exists test'
+
+$ curl http://localhost:8080/weather/init
+```
+
### 配置 application.properties
```properties
# datasource config
diff --git a/examples/JDBC/springbootdemo/src/main/java/com/taosdata/example/springbootdemo/dao/WeatherMapper.xml b/examples/JDBC/springbootdemo/src/main/java/com/taosdata/example/springbootdemo/dao/WeatherMapper.xml
index 99d5893ec1..4899ec4654 100644
--- a/examples/JDBC/springbootdemo/src/main/java/com/taosdata/example/springbootdemo/dao/WeatherMapper.xml
+++ b/examples/JDBC/springbootdemo/src/main/java/com/taosdata/example/springbootdemo/dao/WeatherMapper.xml
@@ -7,6 +7,7 @@
+
- insert into test.t#{groupId} (ts, temperature, humidity, note)
- values (#{ts}, ${temperature}, ${humidity}, #{note})
+ insert into test.t#{groupId} (ts, temperature, humidity, note, bytes)
+ values (#{ts}, ${temperature}, ${humidity}, #{note}, #{bytes})